Relocate symbol against DF_1_GLOBAL shared libraries
loaded before this shared library. This includes
main executable, ld_preloads and other libraries
that have DF_1_GLOBAL flag set.
Bug: 2643900
Bug: 15432753
Bug: 18186310
(cherry picked from commit d225a5e652)
Change-Id: I4e889cdf2dfbf8230b0790053d311ee6b0d0ee2d
The local group is a sequence of libraries in default (breadth-first)
order. It allows RTLD_LOCALLY loaded library to correctly relocate
symbols within its group (see test-cases).
Local group lookup is performed after main executable and ld_preloads.
Bug: 2643900
Bug: 15432753
Bug: 18186310
(cherry picked from commit cfa97f172d)
Change-Id: I5fa8c673f929e4652c738912c7ae078d7ec286d2
Symbols from libraries opened with RTLD_LOCAL (default)
should not be visible via dlsym(RLTD_DEFAULT/RTLD_NEXT, .)
Bug: 17512583
Bug: 18186310
(cherry picked from commit e8ba50fe0d)
Change-Id: Idf6bbe2233fb2bfc0c88677e7d1fc518fb3f7a8b
Reset soinfo version to 0.
Disable ifunc test for arm64 because of old toolchain
in lmp-mr1-dev branch
Note: this commit should be reverted in -plus-aosp branch.
Change-Id: I2d6d996d43bc35d5d4975c745779f43a988b31e6
Expanded test for recursive libs. Fixed bug with unnecessary
soinfo_free of already loaded library.
(cherry picked from commit a6ac54a215)
Change-Id: I6907c723d9fbdf6b2777f3f236b1e29b0843edd6
There are number of changes in the way IFUNC related relocations are done:
1. IRELATIVE relocations are now supported for x86/x86_64 and arm64.
2. IFUNC relocations are now relying on static linker to generate
them in correct order - this removes necessety of additional
relocation pass for ifuncs.
3. Related to 2: rela?.dyn relocations are preformed before .plt ones.
4. Ifunc are resolved on symbol lookup this approach allowed to avoid
mprotect(PROT_WRITE) call on r-x program segments.
Bug: 17399706
Bug: 17177284
(cherry picked from commit 9aea164457)
Change-Id: Ie19d900fc203beb93faf8943b0d06d534a6de4ad
Enable the -std=gnu++11 flag for libstdc++ static and
dynamic libs.
ScopeGuard uses DISABLE_ macros instead of '= delete';
(cherry picked from commit d9ff722661)
Change-Id: If2573d080770e18b36b56106f2369f7bb682cd3c
This patch fixes the problem with symbol search order
for dlsym(RTLD_DEFAULT/RTLD_NEXT, .) by loading libraries
and ld_preloads in correct order.
Bug: https://code.google.com/p/android/issues/detail?id=74255
Attempt: 2
(cherry picked from commit 14669a939d)
Change-Id: Id87540c96a2242220967b6fa5d84ddcd829e2b97
This patch fixes the problem with symbol search order
for dlsym(RTLD_DEFAULT/RTLD_NEXT, .) by loading libraries
and ld_preloads in correct order.
Bug: https://code.google.com/p/android/issues/detail?id=74255
(cherry picked from commit a3ad450a2e)
Change-Id: I1125de10272c84e4f075cbc72859c1f6b3e89943
ifuncs now work in i386 and x86_64 when called in the same library as
well as in a different library.
Bug:6657325
(cherry picked from commit c5a13efa9b)
Change-Id: I321d780bc2f9bd1baa749e1acacd2683aefe827b
On most architectures the kernel subtracts a random offset to the stack
pointer in create_elf_tables by calling arch_align_stack before writing
the auxval table and so on. On all but x86 this doesn't cause a problem
because the random offset is less than a page, but on x86 it's up to two
pages. This means that our old technique of rounding the stack pointer
doesn't work. (Our old implementation of that technique was wrong too.)
It's also incorrect to assume that the main thread's stack base and size
are constant. Likewise to assume that the main thread has a guard page.
The main thread is not like other threads.
This patch switches to reading /proc/self/maps (and checking RLIMIT_STACK)
whenever we're asked.
Bug: 17111575
Signed-off-by: Fengwei Yin <fengwei.yin@intel.com>
(cherry picked from commit 57b7a6110e)
Change-Id: I87e679ee1c0db8092f2d1221c8e7c1461545c5a4
dlsym(3) with handle != RTLD_DEFAULT|RTLD_NEXT performs
breadth first search through the dependency tree.
Bug: 16653281
(cherry picked from commit aa0f2bdbc2)
Change-Id: I0ba8c2034ab341f8a279cdb4e2e7e47f1aef7897
* Static linker optimizes protected local symbol
out of existence, which leads to test failure.
Disabling it for now.
Change-Id: I8de327e5073f98b64639f7a0bba3a273aa419884
* Removed unnecessary NULL check in dlsym
* Fixed dlsym_failure test to account for
correct RTLD_DEFAULT value
* Added temporary check for legacy RTLD_DEFAULT
value for non-yet-recompiled binaries
Bug: 15146875
Change-Id: I089fa673762629f5724b6e4fbca019d9cfc39905
I've also switched some tests to be positive rather than negative,
because !defined is slightly harder to reason about and there are
only two cases: bionic and glibc.
Change-Id: I8d3ac40420ca5aead3e88c69cf293f267273c8ef
Integration of kernel VDSO into internal bionic data structures using
common functions.
Fix for dl_iterate_phdr function: the function provides incorrect
address of object in case of nonzero virtual and base addresses.
Location in address space of a particular program header should be
calculated using the formula: addr = base_addr + virtual_addr.
Signed-off-by: Sergey Melnikov <sergey.melnikov@intel.com>
Change-Id: Ie2ab4257fd456242aab8afed0bd5bd6b29e81d6d
The MIPS toolchain can't generate them because they're incompatible
with the MIPS ABI (which requires .dynsym match the GOT, while GNU-style
requires .dynsym to be sorted by hash code), so there's nothing to test.
Change-Id: I2220f452fe6fe595ec1312544cc741dd390a36a5
